| Clue | Source | Date |
|---|---|---|
| Formulates, as a plan | New York Times | 12 Nov 2023 |
| Crafts | New York Times | 24 Oct 2021 |
| Dreams up | Thomas Joseph | 25 Feb 2020 |
| Constructs 500 flexible sieves | ||
| Invents | The Telegraph Quick | 14 Oct 2017 |
| Formulates or contrives | Universal | 20 May 2017 |
| Formulates or contrives | ||
| Invents | The Washington Post | 27 Jul 2016 |
| Comes up with | USA Today | 26 Nov 2015 |
| Comes up with | ||
| Hatches | ||
| Comes up with | ||
| Thinks up | ||
| Contrives | ||
| Contrives | ||
| Plots | ||
| Contrives. |